package com.holdtime.jtt809dataservice.common.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

import java.util.concurrent.Executor;
import java.util.concurrent.ThreadPoolExecutor;

/**
 * <p>titExecutorConfigle</p>
 * <p>Description</p>
 * <p>Company</p>
 * @author sunwei
 * @date 2019年1月9日 上午10:52:20
 */
@Configuration
@EnableAsync
public class ExecutorConfig {
	/** Set the ThreadPoolExecutor's core pool size. */
	private int corePoolSize = 10;
	/** Set the ThreadPoolExecutor's maximum pool size. */
	private int maxPoolSize = 300;
	/** Set the capacity for the ThreadPoolExecutor's BlockingQueue. */
	private int queueCapacity = 10;

	@Bean
	public Executor mySimpleAsync() {
		ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
		executor.setCorePoolSize(corePoolSize);
		executor.setMaxPoolSize(maxPoolSize);
		executor.setQueueCapacity(queueCapacity);
		executor.setThreadNamePrefix("MySimpleExecutor-");
		executor.initialize();
		return executor;
	}

	@Bean
	public Executor myAsync() {
		ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
		executor.setCorePoolSize(corePoolSize);
		executor.setMaxPoolSize(maxPoolSize);
		executor.setQueueCapacity(queueCapacity);
		executor.setThreadNamePrefix("MyExecutor-");

		// rejection-policy：当pool已经达到max size的时候，如何处理新任务  
		// CALLER_RUNS：不在新线程中执行任务，而是有调用者所在的线程来执行  
		executor.setRejectedExecutionHandler(
				new ThreadPoolExecutor.CallerRunsPolicy());
		executor.initialize();
		return executor;
	}
}
